With just hours to go before Apple CEO Tim Cook takes the stage at the company's annual Worldwide Developers Conference, two of the company's talking points may have been revealed after new Apple code appeared in the open-source WebKit project and cars were spotted on display in the Moscone Center.

A number of vehicles —one of which is Ferrari's FF —have been spotted stationed in various locations around the conference floor. That likely points to a focus on CarPlay, Apple's new iPhone-powered "infotainment" solution.

CarPlay was officially announced by Apple at the Geneva Motor Show in April as a rebranding of the "iOS in the Car" functionality unveiled by the company at the 2013 WWDC. The new vehicle infotainment system will display iPhone maps and play music from a vehicle's dashboard, and even features an advanced, contextually aware artificial intelligence system aims to assist users while they drive.

In addition to aftermarket units, CarPlay support will be built in to new select 2014 vehicles from Volvo, Honda, Mercedes-Benz, Jaguar, Hyundai, and Ferrari. Future partners include Ford, Chevrolet, BMW, Kia, Toyota, Nissan, and Mitsubishi.

Additionally, a number of classes that seem to point to an impending overhaul of the WebView functionality in iOS and OS X were added to WebKit's GitHub repository Monday morning. The changes were checked in by Apple WebKit developer Geoffrey Garen, and were first highlighted on Twitter by developer Conrad Kramer.

A portion of the new WebKit code added early Monday

WebKit is an Apple-supported open source project that forms the basis of the Safari web browser. The new classes appear to reference OS X 10.10 and iOS 8.0, which Apple is expected to unveil at WWDC, though there is little additional information about what changes may be in store.

Some have speculated that Apple may bring WebGL to the next version of mobile Safari, allowing developers to build more immersive web-based applications, including games. The company might also broaden iOS support for WebKit's Nitro JavaScript framework.

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